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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Musings on barrel life...
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<blockquote data-quote="TracySes23" data-source="post: 967118" data-attributes="member: 52763"><p><strong>Re: Thanks!</strong></p><p></p><p></p><p></p><p><strong>Would I be correct if I assume you believe the corners of a polygon barrel have sharp corners?</strong></p><p>Personally, I believe anyone considering sharp inside corners would be ignoring one simple fact of engineering. Sharp inside corners are where stress cracks are most likely to start.</p><p>I would assume a maker of polygon barrels, would have at least a small radius in these corners. Any cutting tool button with sharp corners would quickly wear out those sharp corners. It would complicate calculating a total area that wouldn't cause so much swaging of the bullet as to cause increased pressures. However most mechanical engineers I've met are very good at making the more complex equations such as these. I would think someone with better spreadsheet skills than mine could easily do this. If they in fact do make these barrels, it should (at least in my mind) make those comers much easier to clean.</p><p>I sent an Email to PacNor asking a number of questions I wanted answered, but never received a reply. After a month of waiting, I Emailed the other polygon barrel manufacturer (Schneider?) with the same questions. That was over a year ago. Still no response,</p><p>I was very interested in a polygon barrel then, but finally decided a potential customer wasn't too important to them. So my conclusion was similar to theirs.</p></blockquote><p></p>
[QUOTE="TracySes23, post: 967118, member: 52763"] [b]Re: Thanks![/b] [B]Would I be correct if I assume you believe the corners of a polygon barrel have sharp corners?[/B] Personally, I believe anyone considering sharp inside corners would be ignoring one simple fact of engineering. Sharp inside corners are where stress cracks are most likely to start. I would assume a maker of polygon barrels, would have at least a small radius in these corners. Any cutting tool button with sharp corners would quickly wear out those sharp corners. It would complicate calculating a total area that wouldn't cause so much swaging of the bullet as to cause increased pressures. However most mechanical engineers I've met are very good at making the more complex equations such as these. I would think someone with better spreadsheet skills than mine could easily do this. If they in fact do make these barrels, it should (at least in my mind) make those comers much easier to clean. I sent an Email to PacNor asking a number of questions I wanted answered, but never received a reply. After a month of waiting, I Emailed the other polygon barrel manufacturer (Schneider?) with the same questions. That was over a year ago. Still no response, I was very interested in a polygon barrel then, but finally decided a potential customer wasn't too important to them. So my conclusion was similar to theirs. [/QUOTE]
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Musings on barrel life...
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